Inexplicable behaviour of <type 'function'>

[Fabiano Sidler]

Have a look to the following lines of code:
--- snip ---
class Foo: pass
def bar(): pass
Foo.bar = bar
--- snap ---

Why does 'bar.__get__(Foo) is Foo.bar' evaluate to False here? Did I
misunderstand the descriptor protocol?

Thank you for answering,
F. Sidler

[Leif K-Brooks]

Fabiano Sidler wrote:

Have a look to the following lines of code:
--- snip ---
class Foo: pass
def bar(): pass
Foo.bar = bar
--- snap ---

Why does 'bar.__get__(Foo) is Foo.bar' evaluate to False here? Did I
misunderstand the descriptor protocol?

bar.__get__(None, Bar) is what you meant (the first argument is the
object, not the type), but even then the result will be False, because
the __get__ method on functions returns a different object each time
it's called:

class Foo(object): ... def bar(self):
... pass
... Foo.bar is Foo.bar

False